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Introduction Linux kernel module development normally involves a repetitive sequence: make sign rmmod insmod dmesg When experimenting with kernel modules, repeating these commands manually quickly be
atomic_t vs refcount_t in the Linux Kernel: Counters, References, and Object Lifetime Introduction When developing Linux kernel code, counters and object lifetime management can look deceptively simil
Introduction Concurrent execution is an important concept in operating systems and kernel development. Modern processors can execute multiple tasks concurrently, often across multiple CPU cores. When
Introduction Priority inversion is a classic scheduling problem in real-time and concurrent systems. It occurs when a high-priority task is forced to wait for a lower-priority task, while a medium-pri
Introduction Priority inversion is a classic concurrency and real-time scheduling problem in operating systems. The basic situation is simple: A LOW-priority thread owns a mutex. A HIGH-priority thre
Synchronization is one of the most important concepts in Linux kernel development. When multiple kernel threads access a shared resource simultaneously, improper synchronization can lead to race condi
Modern software systems often separate control logic from high-performance execution logic. This design is common in networking, distributed systems, operating systems, storage engines, and embedded s
Introduction Engineering software often combines multiple programming languages to leverage their individual strengths. A common approach is to implement computational algorithms in native C or C++ wh
Deadlocks are one of the most common synchronization problems encountered in operating systems and concurrent programming. Although the concept is frequently introduced in textbooks, observing it insi
